The U.S. aircraft register, updated daily
Parts

Tc Controller

No failure report names the tc controller. 1 FAA approvals let 1 company make a replacement tc controller, Freeflight Systems holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tc controller and sell it as an approved part for the models named. These are the companies holding such approvals for a tc controller:

For these models most: Beechcraft C90 King Air C90 (1).

MakerPartReplacesFitsGrantedStatus
Freeflight SystemsTC1090 Controller 87253Trig 00649-00-04Beech C902014-10-21current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.